Made from black clay found in central Columbia, La Chamba cookware can be used in the oven, microwave, and on the stovetop. There are no toxins used in the production of La Chamba cookware and tableware. The makers of this unique product use no glazes and there is no lead in the clay. You can feel safe and confident using this unique and authentic traditional clay cookware. La Chamba cookware has also been featured by celebrity chefs such as Rachael Ray.